Variable-speed driving mechanism.



No. 897,861. PATENTED SEPT. 1, 1908.

I H. M00. NORRIS.

VARIABLE SPEED DRIVING MECHANISM.

APPLICATION FILED APB.13, 1908 7 HENRY McCOY Norms, or CINCINNATI, 01110.

vAniABiE-srEEn muvrne nisonamsmQ Specification of Letters Patent.

.Patented Sept. i, 1908.

hpplicationifiled April 13, 1968. Serial No. 426,807.

To all whom it may concern: I

Be it known that I, HENRY MoCoY Noe- RIS, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in VariableSpeed Drivspecification.

' My invention relates to a variable speed drive.

Theobject of the invention is to provide a variables eed drive in-which one of'the drives shal preferably be direct gear and other compound gear drives.

Thefeatures of my invention "are more fully set forth in the description of the accompanying drawings, forming a part of this speclfication, in which Figure 1 is a side elevation of the device. Fig. 2 is a central vertical section.

1- is the main driving shaft, having right and left hand bevel gears 2, 3, thereon, meshing with the bevel gear wheel 5 which is .mounted on a sleeve 6 loose on shaft 7, shaft 7 being the shaft to be driven,

4 is a yoke lever for alternately clutching gears 2, 3, to shaft 1.

8 is a pinion formed on the inner end of sleeve 6. i

9 and 19 represent different diameter gear wheels constituting the compound 1 gear member splined to shaft 7 so as to slide thereon and turn therewith. 1

10 is a clutch member formed on the end face of gear 9.

' '11 is a gear wheel on sleeve 12 loosely mounted on shaft 7, and 13 is a clutch memher on the end of sleeve 12, adapted-to cooperate with clutch member 10.

20 is a wheel member on the outer end of shaft 7.

14 is a shaft counter to shaft 7.

21, 22, represent bearings .for supporting said shafts. y

17 is a gear wheel fixed on-shaft 14 and meshing with pinion 8.

23 is a gear wheel also fixed on shaft 1.4

adapted to be meshed with compound gearv g member 19 when this member is sl pped down from the position shown in Fig. 2.

16 represents a gear wheel fixed to the shaft 14, adapted to be meshed with compound gear member 9 when said member is Mechanism, of which the following is a and gear 9, driving shaft 7.

shaft, a third gear slipped upward from the position shown in Fig. 2.

15 represents a pinion fixed on shaft 14 and meshing with gear 11 on shaft 7. I 24, 25, represent levers connected by segmental gears 26, 27, for shifting the compound gear members 9, 19.

In the position shown in Fig. 2 the drives are all out. When compound gear member 19-is meshed with the gear 23, the gears 23,

17, being of the same diameter, as are alsogears 8 and 19, the shaft 7 will be rotated at the same rate of speed as the gear 5. This being what I have termed a direct gear drive. \Vhen compound gear member 9 is meshed with gear whe l 16 motion will be transmitted through gears 8, 17, shaft '14, gear 16,

indirect or back gear drive. When the compound gears 9, 19, are shifted still further upward and clutch teeth 10 are engagedwith c utch teeth 13, gear 11 will be fixed to shaft 7 andthe drive will be through gears 8, 17 shaft 14, pinion 15, and gear 11, driving shaft 7 at another back gear speed. Of course, the speed ratios may be arranged to suit the requirements. The gears 23, 17, may be formed as a single double faced gear, if desired. If gear 23 were made of a different diameter than gear 17 and gear '19 were made of a corresponding diameter, shaft 7 would not be driven at the same rate of speed as the gear 5. This is quite within the range of my invention although I prefer to furnish one direct gear drive as shown and described.

Having described my invention, I claim 1. In a variable speed device, a first and second shaft, a driving gear loose on one end of the first shaft, a compound gear ada ted to turn with and slide on the interme late portion of the first shaft, and having a clutch member formed thereon, and a third gear loose on the other end of the first shaft and having a cooperating clutch member for said first named clutch member, a double gear fixed to the second shaft meshing with the driving gear on the first shaft and adapted to be intermeshed with one of the members of the compound gear of the first shaft, a middle ge'ar fixed to the second shaft and adapted to be intermeshed with the other member of the com ound gear on the first i This being an ed on the end of the second shaft-and intermeslied with the end I'tobe engaged by the respective members of gear onthe first sh aft, and-mesns for shifting I the com onnd intermediate gear of the first the said compound intermediate with its i sl1ttft,'su' stantially as describe clutch, substantially as described. In testimony whereof, I have hereunto set 5 2. In a yari'abl]: speed device, a first shaft, my hand.

end gears loose t ereon and a compound intermediate gear splined thereon, clutch mem- V HENRX MCCOY NORRIS bers for connecting one of the loose gears to Witnesses:

the intermediate, :1 second shaft having four LEO J. ODoNNELL,

10 gears -fixed thereon, two of which are adapted LUIsE BECK. 

